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Which of the following is the open-chain...

Which of the following is the open-chain structure of D-glucose?

A

Penta-acetyl derivative of glucose

B

Cyanohydrin formation with HCN

C

Reaction with Fehling solution

D

Reaction with Tollen's reagent

Text Solution

Verified by Experts

The correct Answer is:
A
Glucose reacts with acetic anhydride in the presence of anhydrous `ZnCl_2` to form penta-acetyl glucose which indicates the presence of 5 -OH groups in glucose molecule and the open chain structure of glucose.
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ERRORLESS-BIOMOLECULES -ASSERTION & REASON
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